Malicious PDF — malware analysis report

Static analysis result for SHA-256 292465d6078248ae…

MALICIOUS

PDF

40.5 KB Created: 2020-08-08 18:48:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7aba2dd083d6960bdf60ef32090d04a1 SHA-1: 616984198340619c1c93a795b27e9a5544755e93 SHA-256: 292465d6078248ae360000f7de0a7ea9811de4698fa0e68be775ac490df4d002
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with the primary link directing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=effect+of+alloying+elements+in+steel+pdf', which is likely intended to lure the user to a malicious site. The presence of numerous PDF links suggests a SEO-based lure to distribute malicious content.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=effect+of+alloying+elements+in+steel+pdf
    • http://zatof.aylesburylodge4534.com/uploads/1/3/1/3/131379578/kusebifidigaf.pdf
    • http://files.janeincolour.com/uploads/1/3/0/8/130873828/4402645.pdf
    • http://files.stevenwojtowicz.com/uploads/1/3/0/8/130813736/2864257.pdf
    • http://files.aaquizbowl.org/uploads/1/3/1/8/131857304/ed647f417a97.pdf
    • http://porozamid.breastfeedingsupportcenterwny.com/uploads/1/3/1/4/131453870/jebevu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/41759903168.pdf
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/mufasafiviv.pdf
    • https://cdn.shopify.com/s/files/1/0428/2092/7655/files/lumidekazoresila.pdf
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/99952531607.pdf
    • https://cdn.shopify.com/s/files/1/0432/8492/2526/files/mysql_commands_linux.pdf
    • https://cdn.shopify.com/s/files/1/0432/5035/2296/files/34179477679.pdf
    • https://cdn.shopify.com/s/files/1/0439/1682/0635/files/simipipefewudezifidi.pdf
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/39115063703.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84113106953.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3531/files/dajalazotexelulux.pdf
    • https://cdn.shopify.com/s/files/1/0434/3024/8600/files/rights_of_bailor.pdf
    • https://cdn.shopify.com/s/files/1/0431/3192/8740/files/89669301977.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/vebobimenifudemilunega.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006024.bin
8e16c94302d2fed011b19124e4c59e58e9925e90ee512c6746844fe1928587a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6024 5440 bytes
font_01_sfnt_off000072af.bin
ada4f64f50f612add9001d2c95252b35e7f8a21bba5246305ef2eb3907687cf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72AF 10108 bytes

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